diff --git a/src/soc/amd/genoa/domain.c b/src/soc/amd/genoa/domain.c
index 99d7edc..1a6115f 100644
--- a/src/soc/amd/genoa/domain.c
+++ b/src/soc/amd/genoa/domain.c
@@ -48,8 +48,18 @@
 	}
 }
 
+static void genoa_domain_init(struct device *domain)
+{
+	struct resource *res = probe_resource(domain, IOMMU_IOAPIC_IDX);
+	if (!res)
+		return;
+
+	register_new_ioapic((void *)(uintptr_t)res->base);
+}
+
 struct device_operations genoa_pci_domain_ops = {
 	.read_resources	= genoa_domain_read_resources,
 	.set_resources	= genoa_domain_set_resources,
 	.scan_bus	= amd_pci_domain_scan_bus,
+	.init		= genoa_domain_init,
 };